1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
oksano4ka [1.4K]
3 years ago
11

calculate the amount of H2O2:Using the balanced equation, calculate the number of moles of H2O2present in the initial solution.

Calculate the molar mass of H2O2and determine the grams of H2O2present in the initial solution.
Chemistry
1 answer:
arlik [135]3 years ago
4 0

Answer: molar mass of H2O2 = 34 g/mol

mass of H2O2 = 68 grams

Explanation:

The decomposition reaction of Hydrogen peroxide (H2O2) is:

                                     2 H2O2   →    2 H2O   +   O

According to the equation the numbers of moles of  H2O2 is 2 moles.

The molar mass of H2O2 = ( 16×2) + (1x2)

                                                32 + 2 = 34 g/mol

∵ atomic mass of oxygen is 16 and hydrogen is 1.

Now, mole=\frac{mass-in-gram }{molar mass}

putting values

           2=\frac{mass}{34}

mass of H2O2 = 2 × 34 = 68 grams

You might be interested in
A gene which does not produce its effect when an opposite dominant gene is present is called a(n) ________ gene
SpyIntel [72]
A gene which does not produce its effect when an opposite dominant gene is present is called an Hybrid.
5 0
3 years ago
Read 2 more answers
Four gases were combined in a gas cylinder with these partial pressures: 3.5 atm N2, 2.8 atm O2, 0.25 atm Ar, and 0.15 atm He. W
Alona [7]

Answer:

Mole Fraction of O2 --> 0.42

Mole Fraction of Ar --> 0.037

Explanation:

8 0
3 years ago
How are different natural disasters related? What different causes and effects of natural disasters do you know about?
pantera1 [17]

<em>Answer: The disasters are different according to their occurrence. For example, the causes of an earthquake cannot be the same as that of forest-fire. Natural disasters are caused due to different reasons like soil erosion, seismic activity, tectonic movements, air pressure, and ocean currents etc.</em>

<em />

<em>Explanation: Have a great day,</em>

8 0
2 years ago
Read 2 more answers
Describe an experiment to show that pressure acts in all directions in liquids.​
boyakko [2]

We frequently observe kids playing with polythene bags filled with water that have little holes drilled into them at various locations so they can sprinkle water on other kids. Through this experiment, we can say that pressure acts in all directions in liquids.

<h3>Liquid's pressure</h3>

Since both liquids and gases may flow, they are both referred to as fluids. Fluids under rest pressure behave uniformly in all directions.

Weather forecasts can be made using barometers. They track the evolution of atmospheric pressure throughout time.

On weather forecast maps, pressure variations appear as an isobar pattern. Predictions are made using these changes in pressure, and they are fairly accurate when combined with wind observations.

<h3>Pressure and depth in liquids</h3>

As you go away from a liquid's surface, pressure rises. for instance: A bucket has three holes that are all the same size. Since there is more pressure at the bucket's bottom, the water spills out more forcefully. Dams are thicker at the bottom for this reason.

Learn more about Pressure here:-

brainly.com/question/27984798

#SPJ9

3 0
2 years ago
Two different substances of the same mass will have the same specific heat capacity. True or false?
Natalija [7]
The answer to your question is true.
7 0
4 years ago
Other questions:
  • The oxidation of NO by O3 is first order in each of the reactants, and its rate constant is 1.5 x 107 M.S1. If the concentration
    11·1 answer
  • Cacl2 a strong<br> Electrolyte
    6·1 answer
  • Besides water, what is the product of a Neutalization Reaction between H2SO4 and LiOH?
    10·2 answers
  • The quantity, q grams, of the radioactive isotope strontium-90 present in a sample decreases by half over a period of about t =
    7·2 answers
  • Give the value of the quantum number ℓ, if one exists, for a hydrogen atom whose orbital angular momentum has a magnitude of 6√(
    10·1 answer
  • How many moles of sodium chloride are present in 0.5 L of 4 Molar NaCl(aq)
    15·1 answer
  • Compounds of _______________, such as proteins, fats, and carbohydrates, are necessary for life on Earth. *
    11·2 answers
  • What cause a earthquake
    14·1 answer
  • PLEASE HELP ASAP<br> Label the correct descriptors (volume, temperature, pressure, moles) *
    9·1 answer
  • What volume of gas will the balloon contain at 1026 mmHg and 253 K?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!